2026 Jayco Seismic 359
Toy Hauler · Fifth wheel toy hauler · 41.67 ft · sleeps 6
Floor plan
Photos of the 2026 Jayco Seismic 359
Walkthrough video
Video courtesy of THATRVGIRL on YouTube.
Full specifications
Dimensions
| Length | 41.67 ft |
|---|---|
| Width | 102 in |
| Exterior Height | 12.75 ft |
| Interior Height | 99 in |
| Slide-Outs | 1 |
Weights
| Dry Weight | 13,390 lbs |
|---|---|
| GVWR | 17,500 lbs |
| Cargo Capacity | 4,110 lbs |
| Hitch / Pin Weight | 2,950 lbs |
Living
| Sleeps | 6 |
|---|---|
| Bed Configuration | king |
| Bath Layout | full |
| Bunkhouse | No |
Tanks
| Fresh Water | 106 gal |
|---|---|
| Grey Water | 87 gal |
| Black Water | 87 gal |
| LP / Propane | 60 gal |
Power & Electrical
| Solar Pre-Installed | 400 W |
|---|---|
| Generator | 6000 W |
| Shore Power | 50 A |
Amenities
| Outdoor Kitchen | Yes |
|---|---|
| Theater Seating | Yes |
| Residential Fridge | Yes |
| Fireplace | No |
| Four-Season | Yes |
| Off-Road Capable | No |
| Washer / Dryer | prep |
Similar Toy Haulers to consider
Other toy haulers in the catalog with comparable size and price.
Frequently asked questions
How many people does the 2026 Jayco Seismic 359 sleep?
The 2026 Jayco Seismic 359 sleeps 6 and has a king bed configuration.
How much does the 2026 Jayco Seismic 359 cost?
The manufacturer-suggested retail price (MSRP) for the 2026 Jayco Seismic 359 is $114,780. Confirm with the manufacturer or dealer for current pricing — actual transaction prices vary.
How long is the 2026 Jayco Seismic 359?
The 2026 Jayco Seismic 359 is 41.67 feet long and 12.75 feet tall.
What's the dry weight of the 2026 Jayco Seismic 359?
The 2026 Jayco Seismic 359 has a dry weight of 13,390 lbs and a GVWR of 17,500 lbs.
Where can I buy the 2026 Jayco Seismic 359?
Pirka Wakka is a brand-agnostic catalog and doesn't sell RVs. The "Buy on Jayco" link on this page sends you to the manufacturer's product page — they'll route you to an authorized dealer.
Not sure if the 2026 Jayco Seismic 359 is right for you?
Tell Matchmaker your trip, your budget, and your tow vehicle. She'll narrow the catalog to the 2-4 RVs that actually fit — verified specs only, no upsells.
Talk to Matchmaker →